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Finding the Fourth Proportional to 55,799.67, 77,004.09 and 30,649.17

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Solution

The fourth proportional to 55,799.67, 77,004.09 and 30,649.17 is: 42,296.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,799.67 : 77,004.09 = 30,649.17 : x
  2. Step 2: Convert to fraction form
    55,799.67/77,004.09 = 30,649.17/x
  3. Step 3: Cross multiply
    55,799.67x = 77,004.09 × 30,649.17
  4. Step 4: Simplify right side
    55,799.67x = 2,360,111,445.11
  5. Step 5: Solve for x
    x = 2,360,111,445.11/55,799.67
  6. Step 6: Final answer
    x = 42,296.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.